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Re: Why complete the human task with contentdata, however the process variable is null
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created by <a href="https://community.jboss.org/people/gang2007">Krisv W</a> in <i>jBPM Development</i> - <a href="https://community.jboss.org/message/811152#811152">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi!</p><p>I tried to remove all parameter mappings and result mappings in the bpmn file. And it worked. How could it be? I'm confused about the mapping relationship between the process variables and contentdata.</p><p>Could anyone help me, please?</p><p>Any help is appreciated!</p><p>Best Regards</p><blockquote class="jive-quote"><p>Krisv W 编写:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Hi!</p><p>I'm using the local task service with jBPM5.3 version. Question is when I complete the task with contentdata with the following code, the process variable is null. Through <span style="color: #333333; text-decoration: underline;">kcontext.getVariable("quantity")</span><span style="color: #333333;">, </span><span style="color: #333333;">I get null.</span></p><p>I'm confused about the relationship between the process variables and contentdata.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">   TaskService client = LocalHumanTaskService.getTaskService(ksession);
    Map<String,Object> data = <span style="color: navy;"><strong>new</strong></span> HashMap<String,Object>();
    data.put(<span style="color: red;">"priority"</span>, request.getParameter(<span style="color: red;">"priority"</span>));
    data.put(<span style="color: red;">"modelNumber"</span>, request.getParameter(<span style="color: red;">"modelNumber"</span>));
    data.put(<span style="color: red;">"quantity"</span>, request.getParameter(<span style="color: red;">"quantity"</span>));
    ContentData contentData = <span style="color: navy;"><strong>null</strong></span>;
    <span style="color: navy;"><strong>if</strong></span> (data != <span style="color: navy;"><strong>null</strong></span>) <span style="color: navy;">{</span>
       ByteArrayOutputStream bos = <span style="color: navy;"><strong>new</strong></span> ByteArrayOutputStream();
       ObjectOutputStream out;
       <span style="color: navy;"><strong>try</strong></span> <span style="color: navy;">{</span>
           out = <span style="color: navy;"><strong>new</strong></span> ObjectOutputStream(bos);
           out.writeObject(data);
           out.close();
           contentData = <span style="color: navy;"><strong>new</strong></span> ContentData();
           contentData.setContent(bos.toByteArray());
           contentData.setAccessType(AccessType.Inline);
        <span style="color: navy;">}</span> <span style="color: navy;"><strong>catch</strong></span> (IOException e) <span style="color: navy;">{</span>
           e.printStackTrace();
        <span style="color: navy;">}</span>
     <span style="color: navy;">}</span>
   
     client.complete(taskId, userId, contentData);
</code></pre>
<p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p>
<p>Could anyone help me, please?</p>
<p>Any help is appreciated. Thank you!</p>
<p>Best Regards</p>
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